The quick rate of retreat of the Triglav Glacier, which began in the second half of the 20^th century, further accelerated throughout the 90s. Due to increasing intensity of ice thinning, outcropping rocks began to emerge in the middle of the glacier, which disintegrated into two parts in 1992. In the 21^st century, the glacier has been retreating at a slower rate. The last major recession of the glacier was registered after the above average hot summer of 2003. The process stalled in years with above-average snowfall in late spring.

Temperature observations show the trend of increasing maximum and minimum absolute temperatures in the period 1961–2015, which indicates global warming. The number of hot days is increasing, including the frequency of extremely hot days with daily maximum temperature above 35 °C. In the summer of 2013, the highest temperature ever recorded in Slovenia was measured for the second time in history, while local temperature records were broken at several temperature measurement sites. The number of days with temperatures below zero shows a decline.